nagios安装配置记录
一、创建nagios用户和用户组。
[root@localhost ~]#useradd -s /sbin/nologin nagios [root@localhost ~]#mkdir /usr/local/nagios [root@localhost ~]#chown -R nagios:nagios /usr/local/nagios
二、编译安装nagios
[root@localhost ~]# tar -zxvf nagios-3.5.0.tar.gz [root@localhost ~]# cd nagios [root@localhost nagios]#./configure --prefix=/usr/local/nagios [root@localhost ~]# tar -zxvf nagios-3.5.0.tar.gz [root@localhost ~]# cd nagios [root@localhost nagios]#./configure --prefix=/usr/local/nagios [root@localhost nagios]#make all [root@localhost nagios]#make install [root@localhost nagios]# make install-init #在/etc/rc.d/init.d目录下创建nagios启动脚本 [root@localhost nagios]# make install-config #安装示例配置文件 [root@localhost nagios]# make install-commandmode #配置目录权限
三、nagios目录对应功能说明:
bin：可执行程序所在目录
etc：配置文件所在目录
sbin：cgi文件所在目录，也就是执行外部命令所需文件所在目录
share：网页文件所在目录
libexec：外部插件所在目录
var：日志文件，lock等文件所在目录。修改日志文件时间格式，修改拷贝的文件(perl -i -pe '($t) = ($_ =~ m/^\[(\d+)\]/); $nice=scalar localtime $t; s/^\[(\d+)\]/[$nice]/' nagios.log)
var/archives：日志自动归档目录
var/rw：用来存放外部命令文件的目录
四、安装nagios插件。
[root@localhost ~]# tar -zxvf nagios-plugins-1.4.16.tar.gz [root@localhost ~]# yum -y install openssl* [root@localhost ~]# cd nagios-plugins-1.4.16 [root@localhost nagios-plugins-1.4.16]# ./configure --prefix=/usr/local/nagios [root@localhost nagios-plugins-1.4.16]# make [root@localhost nagios-plugins-1.4.16]# make install
五、安装并配置httpd和php
[root@localhost ~]# yum -y install php httpd
[root@localhost ~]# vim /etc/httpd/conf/httpd.conf
User nagios
Group nagios
DirectoryIndex index.html index.html.var index.php
AddType application/x-httpd-php .php
ScriptAlias /nagios/cgi-bin "/usr/local/nagios/sbin"
<Directory "/usr/local/nagios/sbin">
AuthType Basic
options ExecCGI
AllowOverride None
Order allow,deny
Allow from all
AuthName "Nagios Access"
AuthUserFile /usr/local/nagios/etc/htpasswd
Require valid-user
</Directory>
Alias /nagios "/usr/local/nagios/share"
<Directory "/usr/local/nagios/share">
AuthType Basic
Options None
AllowOverride None
Order allow,deny
Allow from all
AuthName "Nagios Access"
AuthUserFile /usr/local/nagios/etc/htpasswd
Require valid-user
</Directory>
[root@localhost ~]# htpasswd -cm /usr/local/nagios /etc/htpasswd USER
[root@localhost ~]# service httpd restart
[root@localhost ~]# service nagios restart
#访问http://ip/nagios 输入用户/密码就可以看到nagios管理界面
六、安装插件NRPE
[root@localhost ~]# tar -zxvf nrpe-2.14.tar.gz
[root@localhost ~]# cd nrpe-2.14
[root@localhost nrpe-2.14]# ./configure
[root@localhost nrpe-2.14]# make all
[root@localhost nrpe-2.14]# make install-plugin
[root@localhost ~]# cd /usr/local/nagios/etc
[root@localhost etc]# mkdir monitor
[root@localhost etc]# cp -R objects/* monitor/
[root@localhost etc]# vim monitor/commands.cfg
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
[root@localhost libexec]# ./check_nrpe -H 192.168.1.1 #检查与被监控对象的连通性
七、定义被监控主机和服务。
[root@localhost ~]# vim /usr/local/nagios/etc/cgi.cfg #将用户名修改为nagios界面登录的用户名
default_user_name=USER
[root@localhost ~]# vim /usr/local/nagios/etc/nagios.cfg
cfg_dir=/usr/local/nagios/etc/monitor #注释掉cfg_file开头的行
[root@localhost ~]# vim /usr/local/nagios/etc/monitor/contacts.cfg #需要指定联系人才能实现监控
define contact{
contact_name USER #必须改为http验证用户
use generic-contact
alias Nagios Admin
email [email protected]
}
define contactgroup{
contactgroup_name admins
alias Nagios Administrators
members USER
}
[root@localhost ~]# service postfix restart #重启邮件服务
[root@localhost ~]# vim /usr/local/nagios/etc/monitor/hosts.cfg #定义主机
define host{
use windows-server #引用模板windows-server的属性信息
host_name test-server #主机命名
alias test #别名
address ip_address #ip地址
}
define hostgroup{ #必须定义组
hostgroup_name windows-servers
alias windows Servers
members test-server
}
[root@localhost ~]# vim /usr/local/nagios/etc/monitor/services.cfg #定义服务
define service{
use local-service
host_name test-server
service_description EXAMPLE
check_command check-host-alive
}
[root@localhost ~]# cd /sbin
[root@localhost sbin]# ln -s /usr/local/nagios/bin/nagios nagios
[root@localhost sbin]# nagios -v /usr/local/nagios/etc/nagios.cfg #检查主配置文件
八、客户端安装nrpe和nagios-plugin。
[root@localhost ~]# useradd nagios
[root@localhost ~]# yum -y install openssl
[root@localhost ~]# tar -zxvf nagios-plugins-1.4.16.tar.gz
[root@localhost ~]# cd nagios-plugins-1.4.16
[root@localhost nagios-plugins-1.4.16]# ./configure --prefix=/usr/local/nagios
[root@localhost nagios-plugins-1.4.16]# make&make install
check_http.c: In function ‘process_arguments’:
check_http.c:312: error: ‘ssl_version’ undeclared (first use in this function)
check_http.c:312: error: (Each undeclared identifier is reported only once
check_http.c:312: error: for each function it appears in.)
[root@localhost ~]# make clean #清除掉之前make的残余信息
[root@localhost ~]# ./configure --prefix=/usr/local/nagios
[root@localhost ~]# make&make install
[root@localhost ~]# chown nagios:nagios /usr/local/nagios
[root@localhost ~]# chown -R nagios:nagios /usr/local/nagios/libexec/
[root@localhost ~]# tar -zxvf nrpe-2.14.tar.gz
[root@localhost ~]# cd nrpe-2.14
[root@localhost nrpe-2.14]# ./configure
[root@localhost nrpe-2.14]# make all
[root@localhost nrpe-2.14]# make install-plugin
[root@localhost nrpe-2.14]# make install-daemon
[root@localhost nrpe-2.14]# make install-daemon-config
[root@localhost nrpe-2.14]# make install-xinetd
[root@localhost ~]# vim /etc/xinetd.d/nrpe
service nrpe
{
flags = REUSE
socket_type = stream
port = 5666
wait = no
user = nagios
group = nagios
server = /usr/local/nagios/bin/nrpe
server_args = -c /usr/local/nagios/etc/nrpe.cfg --inetd
log_on_failure += USERID
disable = no
only_from = 127.0.0.1 192.168.1.10 #指定监控主机的IP
}
[root@localhost ~]# vim /etc/services
nrpe 5666/tcp # nrpe
[root@localhost ~]# service xinetd restart
[root@localhost ~]# /usr/local/nagios/libexec/check_nrpe -H localhost #测试本地nrpe daemon是否正常
[root@localhost ~]# vim /usr/local/nagios/etc/nrpe.cfg #添加监控服务
command[check_http]=/usr/local/nagios/libexec/check_http -I 127.0.0.1 -w 5 -c 10
#以下在服务端添加
[root@localhost ~]# vim /usr/local/nagios/etc/monitor/services.cfg
define service{
use local-service
host_name test-linux
service_description linux
check_command check_nrpe!check_http
}
九、配置Fetion短信报警。
[root@localhost ~]# tar -zxvf fetion20101113.tar.gz
[root@localhost ~]# cd fetion20101113
[root@localhost ~]# mv fetion /bin #剪切主程序到/bin
[root@localhost ~]# mkdir /usr/local/fetion
[root@localhost ~]# mv fetion20101113/* /usr/local/fetion/
[root@localhost ~]# vim /etc/ld.so.conf.d/fetion.conf
/usr/local/fetion #指向Fetion的库文件目录
[root@localhost ~]# ldconfig #重新读取库文件
[root@localhost ~]# fetion --help #测试命令是否可执行
[root@localhost ~]# yum -y install libgcc_s.so.1 #安装缺失的库文件
[root@localhost ~]# fetion --mobile=10086 --pwd=123456 --to=10010 --msg-utf8=Test --debug #发送测试短信，接收人必须是飞信好友，首次发送需填写验证码：/bin/10086.jpg
[root@nagios ~]# vim /usr/local/nagios/etc/monitor/commands.cfg #修改commands配置文件
# 'notify-host-by-fetion' command definition
define command{
command_name notify-host-by-fetion
command_line /bin/fetion --mobile=10086 --pwd=123456 --to=$CONTACTPAGER$ --msg-utf8="***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n"
}
# 'notify-service-by-fetion' command definition
define command{
command_name notify-service-by-fetion
command_line /bin/fetion --mobile=10086 --pwd=123456 --to=$CONTACTPAGER$ --msg-utf8="***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$\n"
}
[root@nagios ~]# vim /usr/local/nagios/etc/monitor/contacts.cfg #修改联系人配置文件
define contact{
contact_name Tom
use generic-contact
alias Monitor user
email [email protected]
service_notification_commands notify-service-by-fetion
host_notification_commands notify-host-by-fetion
pager 10086 #手机号码
}
define contact{
contact_name Tony
use generic-contact
alias Monitor user
email [email protected]
service_notification_commands notify-service-by-fetion
host_notification_commands notify-host-by-fetion
pager 10010
}
define contactgroup{
contactgroup_name admins
alias Nagios Administrators
members Tom,Tony
}
[root@localhost ~]#